Zigaflow allows you to set a date when a product will no longer be sold by you.
Expired products are struck-through and without the 'Add' button on the pull-out to prevent your staff from offering them when they are no longer available:
The date can be set it manually against each item:
It can also be set in bulk using the beta upload. Match the date column in your Excel import to the 'Expiration Date' in the system:
The date in the import file must be in the format of DD/MM/YYYY.